Discontinued Operations - Components of Pension Expense (Detail) - Life Sciences and Engineering [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Defined Benefit Plan Disclosure [Line Items]
Interest Cost	$ 13	$ 16	$ 39	$ 48
Expected return on assets	(8)	(8)	(24)	(24)
Amortization of prior service cost	32	28	97	83
Net pension expense	$ 37	$ 36	$ 112	$ 107